Cita APA (7a ed.)

Hoffmeister, C., Richter, G., & Wenzel, W. (1985). Variable stars. Springer-Verlag.

Cita Chicago Style (17a ed.)

Hoffmeister, C., G. Richter, y W. Wenzel. Variable Stars. Berlin: Springer-Verlag, 1985.

Cita MLA (9a ed.)

Hoffmeister, C., et al. Variable Stars. Springer-Verlag, 1985.